Patents by Inventor Britton G. Billingsley
Britton G. Billingsley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200012911Abstract: Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.Type: ApplicationFiled: September 27, 2017Publication date: January 9, 2020Inventors: Michael A. McCoy, Anne C. Gold, Glenn E. Casner, Timothy J. Gardner, Steven H. Kong, Gautam Singh, Nathan J. Anderson, Caroline M. Ylitalo, Britton G. Billingsley, Muhammad J. Afridi, Travis L. Potts, Robert W. Shannon, Guruprasad Somasundaram
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Publication number: 20190175411Abstract: A system (2000) comprising a head-mounted device (2010); at least one position sensor coupled to the head-mounted device; at least one light-filtering shield (2012) coupled to the at least one position sensor; at least one light detector (2019); and at least one computing device (2017) configured to receive, from the light detector, an indication that an intensity of light detected by the light detector exceeds an exposure threshold; determine, from the at least one position sensor, that the light-filtering shield is not positioned at the face of a worker to filter light with the intensity that exceeds the exposure threshold; and generate, in response to the determination that the light-filtering shield is not positioned at the face of a worker wearing the head-mounted device to filter light with the intensity that exceeds the exposure threshold, an indication for output.Type: ApplicationFiled: June 23, 2017Publication date: June 13, 2019Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Steven T. Awiszus, Kiran S. Kanukurthy, Eric C. Lobner, Robert J. Quintero, Micayla A. Johnson, Carolin M. Ylitalo, Britton G. Billingsley
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Publication number: 20190142640Abstract: A curved eye protection shield for welding protection. The eye protection shield has an electrically switchable darkening filter and a protective cover. The darkening filter has eye facing major inner and outer surfaces, and the protective cover has major inner and outer surfaces. The protective cover is provided for arrangement on the inner surface of the darkening filter. The inner and outer surface of the darkening filter are equidistant, whereas the inner and outer surface of the protective cover are non-equidistant. The invention is advantageous in that it provides an eye protection shield having a minimized refractive power.Type: ApplicationFiled: May 1, 2017Publication date: May 16, 2019Inventors: Kristina M. Magnusson, Kenneth Jarefors, Laurent Froissard, Britton G. Billingsley
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Publication number: 20190091069Abstract: Protective headgear with a curved switchable shutter and curved front and rear cover plates and including at least two antireflective layers.Type: ApplicationFiled: May 8, 2017Publication date: March 28, 2019Inventors: Kristina M. Magnusson, Kenneth Jarefors, Britton G. Billingsley
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Patent number: 10114242Abstract: An automatic-darkening filter 10, 10? that comprises a first polarizer 14, a second polarizer 18, a first liquid-crystal cell 16, and a sensor 64. The first polarizer 14 has a first polarization direction, and the second polarizer 18 has a second polarization direction. The liquid crystal cell 16 is disposed between the first and second polarizers 14, 18 and contains first and second optically-transparent, flexible, glass layers 40 and 42 with the liquid crystal layer 48 being located between these layers. The sensor 64 detects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.Type: GrantFiled: May 23, 2016Date of Patent: October 30, 2018Assignee: 3M Innovative Properties CompanyInventors: Kristina M. Magnusson, Britton G. Billingsley, Kenneth Jarefors, Larissa Zuravskaja, Joy L. Manske
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Patent number: 9931592Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and zinc (hydr)oxide. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.Type: GrantFiled: August 19, 2014Date of Patent: April 3, 2018Assignee: The United States of America as Reresented by the Secretary of the ArmyInventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Patent number: 9908076Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.Type: GrantFiled: August 19, 2014Date of Patent: March 6, 2018Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Publication number: 20170363884Abstract: A vision-protecting filter lens, including a multilayer optical film and a neutral-density optical filter.Type: ApplicationFiled: November 25, 2015Publication date: December 21, 2017Inventors: Michael E. Hallock, Joy L. Manske, Britton G. Billingsley
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Patent number: 9757678Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and containing zinc (hydr)oxide. The first or second filter media particles also contain an amine-functional material. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in breakthrough times for nitrogen dioxide, hydrogen sulfide, ammonia and formaldehyde compared to a device containing only the first filter media particles or only the second filter media particles.Type: GrantFiled: August 19, 2014Date of Patent: September 12, 2017Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Patent number: 9744328Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 in fluid communication with the downstream air distribution system. The upstream and downstream air distribution systems are constructed to cause the same airflow velocity through each subsection. Using such a construction, overall product service life may be increased while minimizing pressure resistance of the total filter.Type: GrantFiled: November 3, 2014Date of Patent: August 29, 2017Assignee: 3M Innovative Properties CompanyInventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
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Patent number: 9744329Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.Type: GrantFiled: November 3, 2014Date of Patent: August 29, 2017Assignee: 3M Innovative Properties CompanyInventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
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Publication number: 20160361679Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and containing zinc (hydr)oxide. The first or second filter media particles also contain an amine-functional material. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in breakthrough times for nitrogen dioxide, hydrogen sulfide, ammonia and formaldehyde compared to a device containing only the first filter media particles or only the second filter media particles.Type: ApplicationFiled: August 19, 2014Publication date: December 15, 2016Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Publication number: 20160262467Abstract: An automatic-darkening filter 10, 10? that comprises a first polarizer 14, a second polarizer 18, a first liquid-crystal cell 16, and a sensor 64. The first polarizer 14 has a first polarization direction, and the second polarizer 18 has a second polarization direction. The liquid crystal cell 16 is disposed between the first and second polarizers 14, 18 and contains first and second optically-transparent, flexible, glass layers 40 and 42 with the liquid crystal layer 48 being located between these layers. The sensor 64 detects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.Type: ApplicationFiled: May 23, 2016Publication date: September 15, 2016Inventors: Kristina M. Magnusson, Britton G. Billingsley, Kenneth Jarefors, Larissa Zuravskaja, Joy L. Manske
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Patent number: 9259676Abstract: A radial flow filtration system includes a housing and one or more generally cylindrical filter cartridges including a filter cartridge shell and a filter section. The filter cartridge is removable with respect to the housing and the filter section in removable with respect to the filter cartridge shell.Type: GrantFiled: December 4, 2009Date of Patent: February 16, 2016Assignee: 3M Innovative Properties CompanyInventors: Britton G. Billingsley, David M. Castiglione, Gary E. Dwyer, Pierre Legare
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Publication number: 20150306536Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and zinc (hydr)oxide. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.Type: ApplicationFiled: August 19, 2014Publication date: October 29, 2015Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Publication number: 20150283493Abstract: A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.Type: ApplicationFiled: August 19, 2014Publication date: October 8, 2015Inventors: Britton G. Billingsley, Larry A. Brey, William Buechter, Pierre Legare, Derek M. Maanum, Gregory W. Peterson, Joseph A. Rossin
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Patent number: 8984753Abstract: A method of making a filter cartridge, which method includes: (a) providing first and second filter media layers that each contain active particulate that is bonded together and that each comprise a perimeter; (b) stacking the filter media layers in a spaced apart relationship; and (c) securing a roll based housing sidewall to at least a portion of the perimeter of each filter media layer. The resulting filter cartridge is light in weight but has increased volume that provides an improved service life. The cartridge has a very good service life to weight ratio.Type: GrantFiled: May 20, 2010Date of Patent: March 24, 2015Assignee: 3M Innovative Properties CompanyInventors: Britton G. Billingsley, Pierre Legare
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Publication number: 20150047632Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection is adapted to receive a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 in fluid communication with the downstream air distribution system. The upstream and downstream air distribution systems are constructed to cause the same airflow velocity through each subsection. Using such a construction, overall product service life may be increased while minimizing pressure resistance of the total filter.Type: ApplicationFiled: November 3, 2014Publication date: February 19, 2015Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
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Publication number: 20150047633Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.Type: ApplicationFiled: November 3, 2014Publication date: February 19, 2015Inventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske
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Patent number: 8899227Abstract: A filtering device 10 that includes a housing 12 having a plurality of subsections 32, 34, and 36 where each subsection contains a filter element 26, 28, and 30. An inlet 18 is disposed at a first location on the housing 12, and an upstream air distribution system is placed in fluid communication with the inlet 18 and with each of the subsections 32, 34, and 36. A downstream air distribution system is located in fluid communication with each subsection 32, 34, and 36, and an outlet 20 is in fluid communication with the downstream air distribution system. The subsections are fashioned such that each subsection 32, 34, and 36 is not in fluid communication with each other. Using a filtering device so constructed, airflow through the device may be better managed to enable overall product service life to be increased while minimizing pressure resistance of the total filter.Type: GrantFiled: December 15, 2011Date of Patent: December 2, 2014Assignee: 3M Innovative Properties CompanyInventors: Britton G. Billingsley, David M. Blomberg, Joy L. Manske